Trojan-PSW.Win32.Zbot_61925f6fda

by malwarelabrobot on July 2nd, 2014 in Malware Descriptions.

Trojan.Win32.Llac.dcxp (Kaspersky), Trojan.GenericKD.1711332 (AdAware), Trojan-PSW.Win32.Zbot.6.FD, Sinowal.YR, GenericInjector.YR, BackdoorCaphaw_QKKBAL.YR, TrojanPSWZbot.YR (Lavasoft MAS)
Behaviour: Trojan-PSW, Trojan, Backdoor


The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

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Summary
Dynamic Analysis
Static Analysis
Network Activity
Map
Strings from Dumps
Removals

MD5: 61925f6fda6176fd448918c40ce64d39
SHA1: adef13a7561fcb9ebc2c2be5b5ce6e18b3deb469
SHA256: 65011ed50eeff4fc34d07d4ae9fdb8bc6dec12e97a7795828d231ef7a6ae7059
SSDeep: 24576:URmJkcoQricOIQxiZY1iazeOLUQi6DSi4rcM:xJZoQrbTFZY1iazeOon
Size: 972639 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: AirInstaller
Created at: 2012-01-29 23:32:28
Analyzed on: WindowsXP SP3 32-bit


Summary:

Trojan-PSW. Trojan program intended for stealing users passwords.

Payload

No specific payload has been found.

Process activity

The Trojan-PSW creates the following process(es):

%original file name%.exe:3104
%original file name%.exe:452
oqiko.exe:1272
oqiko.exe:1312

The Trojan-PSW injects its code into the following process(es):

Explorer.EXE:1948

Mutexes

The following mutexes were created/opened:
No objects were found.

File activity

The process %original file name%.exe:3104 makes changes in the file system.
The Trojan-PSW creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\Tiky\oqiko.exe (6413 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp51a3c031.bat (177 bytes)

Registry activity

The process %original file name%.exe:3104 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "8E A3 9A 7D EE 3E 81 39 EF 8C 92 94 79 E5 58 8E"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

The process %original file name%.exe:452 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1C AB 09 C0 4C A2 95 04 1E F2 4A 7F DC D6 B9 45"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{773a730e-74fb-11e2-b597-000c293bdf2f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f3-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f5-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f2-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

The process oqiko.exe:1272 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "A2 D3 97 15 79 1A 32 87 73 69 7F 2A 9D 30 FF EB"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{773a730e-74fb-11e2-b597-000c293bdf2f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f3-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f5-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{fdd9f6f2-7454-11e2-b4cd-806d6172696f}]
"BaseClass" = "Drive"

The process oqiko.exe:1312 makes changes in the system registry.
The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "8A 0F E4 80 F2 6F 0F F2 BA 56 75 2B 56 D0 29 BD"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

Dropped PE files

MD5 File path
00fd6105a6504c853c3b850565ca42a3 c:\Documents and Settings\"%CurrentUserName%"\Application Data\Tiky\oqiko.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

The Trojan-PSW installs the following user-mode hooks in WINMM.dll:

PlaySoundW

The Trojan-PSW installs the following user-mode hooks in WININET.dll:

HttpEndRequestW
HttpEndRequestA
HttpSendRequestExW
HttpSendRequestExA
InternetSetFilePointer
InternetReadFileExA
HttpSendRequestA
HttpOpenRequestW
HttpSendRequestW
HttpOpenRequestA
InternetQueryDataAvailable
InternetCloseHandle
HttpQueryInfoA
InternetReadFile

The Trojan-PSW installs the following user-mode hooks in CRYPT32.dll:

PFXImportCertStore

The Trojan-PSW installs the following user-mode hooks in USER32.dll:

SetCursorPos
DefMDIChildProcA
DefFrameProcA
DefDlgProcA
GetClipboardData
DefMDIChildProcW
DefFrameProcW
GetUpdateRgn
RegisterClassA
GetDCEx
ReleaseCapture
SetCapture
DefWindowProcA
CallWindowProcA
GetUpdateRect
PeekMessageA
CallWindowProcW
GetMessagePos
GetCursorPos
EndPaint
BeginPaint
DefWindowProcW
RegisterClassExA
GetMessageA
DefDlgProcW
SwitchDesktop
OpenInputDesktop
RegisterClassExW
RegisterClassW
GetCapture
PeekMessageW
GetMessageW
GetWindowDC
TranslateMessage
GetDC
ReleaseDC

The Trojan-PSW installs the following user-mode hooks in ADVAPI32.dll:

CreateProcessAsUserA
CreateProcessAsUserW

The Trojan-PSW installs the following user-mode hooks in WS2_32.dll:

WSASend
gethostbyname
send
closesocket
getaddrinfo

The Trojan-PSW installs the following user-mode hooks in kernel32.dll:

ExitProcess
GetFileAttributesExW

The Trojan-PSW installs the following user-mode hooks in ntdll.dll:

NtCreateThread

Propagation

VersionInfo

Company Name:
Product Name:
Product Version:
Legal Copyright:
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 3, 3, 8, 1
File Description:
Comments:
Language: English (United States)

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 4096 525852 526336 4.63347 61ffce4768976fa0dd2a8f6a97b1417a
.rdata 532480 57280 57344 3.32693 0354bc5f2376b5e9a4a3ba38b682dff1
.data 589824 108376 26624 1.49032 8033f5a38941b4685bc2299e78f31221
.rsrc 700416 35968 36352 3.61332 b1d89384783d565760547a4e591130d5

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

The Trojan-PSW connects to the servers at the folowing location(s):

Explorer.EXE_1948_rwx_01100000_0003B000:

.text
`.data
.reloc
%s, u %s %u u:u:u GMT
HTTP/1.1
HTTP/1.0
http://
; charset=%s
HTTP/1.1 %u %s
Date: %s
Content-Length: %u
Expires: %s
Content-Type: %s%s
ID: %s
value_%s
value_%s_%s
%s = "%s";
update.exe
config.bin
PR_OpenTCPSocket
cit_ffcookie.module
cit_video.module
userenv.dll
del "%s"
if exist "%s" goto d
del /F "%s"
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
urlmon.dll
cabinet.dll
http://xxxxxxxx.com/xxxx/xxxx.php
%s%s%s
gdiplus.dll
GdiplusShutdown
ole32.dll
gdi32.dll
6;:5;66"
,1;(,; = 1
'472%9,{
F@ICTQ}cRTWAunO}mmts}NX~csgzn~)[jzyemer\]ika
8/3.xae4LOa
6 !26!1'1!
https://
HTTP/1.
facebook.com
Cookie: %s
Referer: %s
Accept: %s
Accept-Language: %s
Accept-Encoding: %s
_getFirefoxCookie
http://www.google.com/webhp
SSShD
SSShXe
SSShye
GetProcessHeap
CreatePipe
KERNEL32.dll
MsgWaitForMultipleObjects
OpenWindowStationW
GetProcessWindowStation
CreateWindowStationW
CloseWindowStation
SetProcessWindowStation
SetKeyboardState
ExitWindowsEx
GetKeyboardState
MapVirtualKeyW
GetKeyboardLayoutList
USER32.dll
RegCreateKeyExW
RegOpenKeyExW
RegCloseKey
RegCreateKeyW
RegEnumKeyW
RegQueryInfoKeyW
RegEnumKeyExW
ADVAPI32.dll
UrlUnescapeA
SHDeleteKeyW
PathIsURLW
SHLWAPI.dll
ShellExecuteW
SHELL32.dll
Secur32.dll
SetViewportOrgEx
GDI32.dll
WS2_32.dll
PFXImportCertStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertCloseStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
PFXExportCertStoreEx
CRYPT32.dll
HttpSendRequestExA
HttpQueryInfoA
HttpSendRequestExW
HttpSendRequestW
HttpOpenRequestA
HttpOpenRequestW
HttpEndRequestA
HttpSendRequestA
HttpEndRequestW
InternetCrackUrlA
HttpAddRequestHeadersW
GetUrlCacheEntryInfoW
HttpAddRequestHeadersA
WININET.dll
OLEAUT32.dll
NETAPI32.dll
VERSION.dll
WINMM.dll
PSSSSSSh
3$3*30383
6|7k7u7
9 :1:::@:
42>204:4
sXXXX
nspr4.dll
chrome.dll
\StringFileInfo\xx\%s
ntdll.dll
kernel32.dll
"%s" %s
/c "%s"
%sx.%s
%sx
SELECT * FROM %s
Company: %s
Product: %s
Version: %s
Software\Microsoft\Windows\CurrentVersion\Uninstall
%u: %s | %s | %s
Global\XXX
SysShadow
Chrome
Firefox
%Documents and Settings%\%current user%\Application Data
{1D311445-0522-B713-E0EC-4BF93E9FBFAA}
%Documents and Settings%\%current user%\Application Data\Vaivv\hepoe.qym
%Documents and Settings%\%current user%\Application Data\Vaivv
hepoe.qym
Global\{8B4AA660-B707-2168-E0EC-4BF93E9FBFAA}
%Documents and Settings%\%current user%\Application Data\Guubu\epty.ziw
%Documents and Settings%\%current user%\Application Data\Guubu
epty.ziw


Remove it with Ad-Aware

  1. Click (here) to download and install Ad-Aware Free Antivirus.
  2. Update the definition files.
  3. Run a full scan of your computer.


Manual removal*

  1. Scan a system with an anti-rootkit tool.
  2. Terminate malicious process(es) (How to End a Process With the Task Manager):

    %original file name%.exe:3104
    %original file name%.exe:452
    oqiko.exe:1272
    oqiko.exe:1312

  3. Delete the original Trojan-PSW file.
  4. Delete or disinfect the following files created/modified by the Trojan-PSW:

    %Documents and Settings%\%current user%\Application Data\Tiky\oqiko.exe (6413 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\tmp51a3c031.bat (177 bytes)

  5. Reboot the computer.

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

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